Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7204565 | Electrohydraulic assembly for an electronically controlled brake system The invention relates to an electrohydraulic assembly for an electronically controlled brake system with an accommodating member which includes accommodating bores for electrohydraulic valves, accommodating bores for hydraulic supply devices and an accommodating bor... | 04/17/2007 |
| 6341950 | Piston pump The invention relates to a piston pump, which is intended for use as a return pump for a slip-controlled hydraulic vehicle brake system. To simplify the manufacture of a piston of the piston pump, the piston includes a thin sleeve.... | 01/29/2002 |
| 6093003 | Piston pump The invention relates to a piston pump with a piston received axially displaceably in a pump bore. To improve the aspiration performance of the piston pump. A cuff with a U-shaped annular cross section is provided, the cuff is inserted into the pump bore ... | 07/25/2000 |
| 6059547 | Cylinder injection high-pressure fuel pump A cylinder injection high-pressure fuel pump permits reduction in size and cost thereof and it is also capable of securely absorbing high-frequency pulsations. The cylinder injection high-pressure fuel pump (200) has: a casing (1) in which an inlet passag... | 05/09/2000 |
| 5775886 | Gas compressor with reciprocating piston with valve sheath A highly manufacturable gas compressor includes a sheath removably attached to a piston by several resilient fingers that snap into place at the bottom of the piston. The fingers act to limit relative motion between the piston and sheath as the piston is ... | 07/07/1998 |
| 5722817 | Noise-reducing apparatus for linear compressor A noise-reducing apparatus for a linear compressor which can significantly reduce noise by forming a multistage silencer in the suction side of a refrigerant passage of a linear compressor in which an axial flow valve system is adopted and therein a plura... | 03/03/1998 |
| 5656879 | Magnetic eccentric motion motor An eccentric-motion motor for driving a utilization mechanism includes a stator defining a closed surface pathway, an armature composed of a permanent magnet rollably disposed on the closed surface pathway, a series of electromagnetic elements disposed in... | 08/12/1997 |
| 5531887 | Manually operated reverse osmosis desalinization system Reverse osmosis, particularly for manually operating water desalination, is achieved using semipermeable membranes which selectively permeate purified water from a feed solution pressurized by reciprocating piston or diaphragm pump. The manual pump action... | 07/02/1996 |
| 5411376 | Fuel pump with noise suppression A gear rotor fuel pump having a gear rotor pump assembly received on a cantilever bearing in an end cap of the pump and an armature journalled for rotation at one end in the bearing while being rotatably unsupported at its other end for preventing bearing... | 05/02/1995 |
| 5324181 | Precisely adjustable pneumatic calibration pump A pneumatic calibration system and the pump therefore, the system comprising a first fluid containing chamber for attachment to a device to be tested, a valve coupled to the first chamber to remove the fluid from the first chamber and a pump structure for... | 06/28/1994 |
| 5219277 | Electric-motor fuel pump An electric-motor fuel pump that includes an inlet end cap, an outlet end cap and a case coaxially joining the end caps to form a closed pump housing. An electric motor is disposed with the housing, and includes an armature journalled for rotation between... | 06/15/1993 |
| 5122039 | Electric-motor fuel pump An electric-motor fuel pump that includes an inlet end cap, an outlet end cap and a case coaxially joining the end caps to form a closed pump housing. An electric motor is disposed with the housing, and includes an armature journalled for rotation between... | 06/16/1992 |
| 5092742 | Fluid sampling pump A sampling pump is provided suitable for pumping a discrete quantity of either a liquid or a gas per pump stroke from a flow line to a sample vessel. An operator unit drives a piston within the pump bore, and controls the stroke of the piston and thus the... | 03/03/1992 |
| 4784581 | Compressor head and suction muffler for hermetic compressor A hermetic reciprocating piston refrigeration compressor utilizes separate cylinder head members for the discharge and suction plenum chambers adjacent the discharge and suction valves. The two cylinder heads extend over substantially the entire area of t... | 11/15/1988 |
| 4448574 | Extra-high pressure water pump An extra-high pressure water pump includes a cylinder barrel, a piston and a pair of double check valves. The piston is composed of a main piston and a lubricating oil piston. The lubricating oil piston has a double piston ring and is slidably mounted on ... | 05/15/1984 |
| 4434056 | Multi-cylinder reverse osmosis apparatus and method Multi-cylinder reverse osmosis pump having at least three cylinders, each feed cylinder having a displacer rod carrying a displacer to divide the cylinder into respective pumping and expansion chambers. Each displacer rod has an expansion chamber valve po... | 02/28/1984 |
| 4288326 | Rotary shaft driven reverse osmosis method and apparatus Reverse osmosis, particularly for water desalination, uses semipermeable membranes which selectively permeate purified water from a feed solution pressurized by a reciprocating feed pump driven by rotating crankshaft. Pump action is assisted by depressuri... | 09/08/1981 |
| 4271990 | Pumping system for dispensing product from a container This pumping system provides a continuous discharge of flowable product withdrawn from a container into a pressurizing chamber and pumped by a pressurizing piston there into a storage chamber just ahead of a stationary discharge nozzle. A spring acts on a... | 06/09/1981 |
| 4174056 | Pump type dispenser with continuous flow feature A pump type dispenser for dispensing a spray of liquid has a container for containing the liquid to be dispensed, a piston-cylinder device for drawing liquid out of the container and pressurizing it, a dispensing head into which the pressurized liquid is ... | 11/13/1979 |
| 4146155 | Continuous trigger activated pumping system A pumping system is disclosed in which a storage compartment formed by a spring-loaded piston and cylinder assembly cooperates with a trigger actuated, spring loaded piston and cylinder assembly to store some product during a pressure stroke and discharge... | 03/27/1979 |
| 4111616 | Flexible wall pump A sludge pump which includes successive inlet, work and outlet chambers interconnected by one-way valves. Means is provided to periodically vary the volume of the work chamber thereby to induce transfer of fluid through the work chamber from the inlet to ... | 09/05/1978 |
| 4079865 | Non-pulsating, non-throttling, vented pumping system for continuously dispensing product A non-pulsating, non-throttling, vented pumping system is disclosed for continuously dispensing product from a container in a relatively non-pulsating stream or spray. The pumping system includes a pump for withdrawing product from a container and for pre... | 03/21/1978 |
